CN217992504U - Portable marking device - Google Patents

Abstract

The utility model relates to a measuring tool field provides a portable marking device, connect in the card foot of main scale including main scale and at least two, the card foot is including the connection structure who links to each other and marking off the foot, connection structure connect in main scale, at least two marking off the foot and being located one side of main scale, all the bottom surface of card foot flushes, and the bottom surface of card foot is parallel and be less than the bottom surface of main scale, but at least one card foot and main scale relative slip. The utility model has the advantages that: the utility model discloses a relative position of card foot and main scale sets up and makes and can paste tight sample when drawing the marking line, makes marking equipment and the sample relatively fixed that awaits measuring, is difficult to skid, and can once only accomplish the operation of drawing the target gauge length marking line, avoids the human error of multistep existence, has also reduced size mark's work load, has improved size mark's accuracy and efficiency, makes the experimental data result more reliable.

Description

Portable marking device

Technical Field

The utility model relates to a measuring tool field, more specifically relates to a portable marking device.

Background

After the metal and alloy materials are prepared, the mechanical properties of the materials need to be verified, a tensile test is one of the most common and important test methods in the mechanical property test of the materials, and the mechanical properties such as toughness, strength and the like of the metal and alloy materials can be judged by testing the maximum tensile strength, yield strength and elongation after fracture of a test piece. One of the most important aspects in testing is the preparation of tensile specimens, including the precise marking of specimen gauges. Before a tensile test is carried out on a new material, a sample needs to be subjected to scale distance, displacement variation of a corresponding marked point is measured by combining a corresponding instrument after the sample is subjected to tensile fracture, and the elongation at break of the sample is obtained through a corresponding calculation formula.

Currently, the main method of marking size is; the ruler is stuck on the test piece for reading, and points are drawn at the upper end and the lower end of the ruler at corresponding positions; the ruler is taken down, the ruler is attached to the point drawing position, the line drawing is carried out, the two sides are respectively carried out, different test pieces repeat the step, and the clamping end of the test bar is usually required to be pressed by one person.

However, the existing scribing method mainly has the following defects: firstly, points are drawn at two ends of a straight ruler, the last scribing is not straight due to human errors, and the distance between two scribing lines exceeds the range; secondly, the method has the disadvantages of multiple repetitive steps, complex operation process, low efficiency and large workload.

Patent CN 206113813U discloses a scale distance device, through setting up the base that has the holding surface, two at least marking reference portions and locking structure to set up the accommodation space who holds the finished piece, can adopt locking structure fastening after adjusting the interval between the marking reference portion to the size of waiting to mark, will make after arranging accommodation space in, alright adopt knife or pen to make the mark size. The operation is convenient, and the accuracy of the size marking result can be effectively ensured. However, the two clamping feet are connected to the upper surface of the main scale in a sliding mode, when the ruler is used, the positioning is carried out by means of the base, the structure is complex, and if the ruler needs to meet the requirements of marking lines with different lengths, the base needs to be made larger, so that the ruler is inconvenient to carry.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to aim at overcoming above-mentioned prior art at least, provides a handy marking device, improves mark size's accuracy, portability and marking efficiency on the sample.

The utility model provides a technical scheme be, a portable marking device, connect in the card foot of main scale including main scale and at least two, the card foot is including the connection structure who links to each other and marking off the foot, connection structure connect in the main scale, at least two marking off the foot and being located one side of main scale, all the bottom surface of card foot flushes, and the bottom surface of card foot is parallel and be less than the bottom surface of main scale, but at least one card foot and main scale relative slip.

In the technical scheme, the main ruler is a ruler with scale lines and is used for providing distance measurement basis for target scale distance adjustment, determining the relative positions of two clamping feet and connecting more than two clamping feet. The clamping feet are marking parts connected to the main ruler, and the relative position between the two clamping feet is used as a gauge length. The connecting structure is a part of the clamping foot connected with the main scale and is used for connecting the scribing foot with the main scale. The marking foot is a sheet-shaped object with one end connected with the main scale and at least one side vertical to the main scale, and the side vertical to the main scale is used for marking a mark line. At least two marking off feet are on the same side of main scale, guarantee that have two card feet to place simultaneously and mark off on same sample. Optionally, one side of the main scale is provided with a scribing pin or both sides of the main scale are provided with scribing pins.

The bottom surfaces of the clamping pins are contact surfaces with a sample to be measured, the bottom surfaces of all the clamping pins are lower than the bottom surface of the main scale and are parallel to the bottom surface of the main scale, so that the bottom surfaces of the clamping pins can be tightly attached to the sample to be measured, the clamping pins and the sample to be measured are not easy to move relatively, and the accuracy of marking distance is improved; if the bottom surface of card foot is not flushed, when can lead to placing the card foot on the sample, have certain slope for the sample main scale, the marking off distance is shorter than the target distance to the card foot has that one side can't paste completely on the sample that awaits measuring, shifts easily. Therefore, the bottom surfaces of the clamping pins are designed to be flush, so that the main ruler can be parallel to a sample to be measured and the clamping pins are completely attached to the sample, and the relative distance between the clamping pins is the distance of the marked line. At least one clamping pin and the main scale slide relatively to realize the adjustment of the target gauge length, if all the clamping pins can move on the main scale, the position of the two clamping pins on the main scale can be adjusted more flexibly, and the clamping pins can use the inner side or the outer side to line according to actual requirements.

When the marking device adopts the technical scheme to mark on a sample, the positions of the clamping feet on the main scale are adjusted, the distance between the two clamping feet is used as a target scale distance, the device is placed on the sample to be detected, the bottom surfaces of the clamping feet are tightly attached to the upper surface of the sample, the marking device can be pressed by one hand to be not easy to slip, and the distance between the marking lines is ensured to be equal to the scale reading on the main scale. The marking method has the advantages that the marking is performed on the side, perpendicular to the clamping pins, of the clamping pins, the size marking is completed at one time, the operation steps are simple, the human errors caused by repeated marking steps are avoided, the marking distance of the marks is further more accurate, and meanwhile, the marking efficiency is greatly improved. In addition, the marking device of the technical scheme is simple in structure, only comprises a portable main scale and a plurality of clamping pins, the requirement of portability of a user can be met, and the marking device is high in practicability. Furthermore, the number of the clamping pins in the technical scheme can be increased along with the actual requirement, and the application requirements of more scenes can be met.

Further, the connecting structure comprises a supporting piece and a fastening piece, the supporting piece is of a square annular structure, and the main ruler penetrates through the supporting piece; the top or the side of the support piece is provided with a through hole, and the fastener penetrates through the through hole to be abutted against the main ruler.

In this technical scheme, the main scale passes closed square font annular structure support piece, and support piece cover is established on the main scale promptly, and support piece's bottom surface is used for supporting the main scale, and the through-hole is used for providing the passageway with the main scale butt for the fastener, and the fastener forms the part of dismantling the connection with support piece for with the main scale butt on support piece, support piece except the top surface, the butt face of main scale all can be regarded as to other trilateral. The opposite face mutual butt cooperation of through-hole on fastener, through-hole and the support piece is fixed support piece relatively on the main scale through the butt effect.

When the clamping feet need to slide, the fastening piece is loosened, the target distance is adjusted according to the scales on the main scale, the fastening piece is locked, the main scale is abutted to the opposite surface of the through hole in the supporting piece by the fastening piece, the supporting piece is relatively fixed on the main scale and does not move, so that the scribing feet and the main scale are relatively fixed, scribing is carried out, the adjustability of the distance between the clamping feet is realized, and the accuracy of the distance between the scribing feet is ensured.

Further, the connecting structure comprises a support part and a fastener, the support part is a Contraband-shaped annular structure with an opening, and the main scale penetrates through the support part; the opening faces to the side face of the support piece, a through hole is formed in the top of the support piece, or the opening faces to the top face of the support piece, and a through hole is formed in the side portion of the support piece; the fastener passes through the through hole and abuts against the main ruler.

In the technical scheme, one side surface or the top surface of the annular structure of the support piece is omitted, when the support piece is U-shaped, the through hole is formed in the side surface, the height of the support piece is larger than the thickness of the main ruler, and the main ruler is abutted by the fastening piece to the side surface so as to fix the clamping pin on the main ruler; when the supporting piece is in a shape of Contraband or a symmetrical structure thereof, the through hole is formed in the top surface, and the fastening piece abuts against the bottom surface to fix the clamping foot on the main ruler.

The opening is arranged, so that materials can be saved on the premise that the clamping pins and the main scale can be fixed mutually, the production cost is saved, the weight is lighter, and the carrying is more convenient; in addition, the opening is arranged, so that the main scale is separated from the clamping foot more easily after the scribing equipment finishes scribing, and the storage are convenient.

Further, the fastener includes head and the screw rod that links to each other, the through-hole is equipped with the internal thread that matches with the screw rod.

In the technical scheme, the head part is used as a stress part for locking and unlocking the fastening piece, and the screw rod and the internal thread are matched with each other through rotation to lock or unlock the fastening piece. When in use, the head is screwed to drive the screw rod to rotate, the tightness is good, and the operation is simple and labor-saving. Alternatively, the cross-section of the head may be rectangular, hexagonal or circular or the like,

furthermore, the head is a cylinder, a plurality of protrusions are arranged on the side face of the head, the protrusions are uniformly distributed on the side face of the head, and the cross section of each protrusion is rectangular.

In the technical scheme, the arrangement of the protrusions can increase the friction force between a hand and the fastener, the fastener needs to be frequently screwed in the use process, the fastener is easier to screw due to the increase of the friction force, and the use experience of a user is optimized; the bulges are uniformly distributed more attractively, and the rectangular cross section enables the fastener to have better hand feeling when being screwed.

Furthermore, the length of the scribing pin is 3 cm-7 cm.

In the technical scheme, the marking foot is too long, which causes inconvenience in carrying, increases the material cost of production, and does not need too long marking line in practical application; too short of the scribing foot may result in poor sample-adhering effect and insufficient length of the scribed mark line. The appropriate scribe leg length facilitates the manufacture and use of the scribe leg.

Further, both sides of the scribing foot are perpendicular to the main ruler.

In this technical scheme, the both sides of ruling foot all can be perpendicular to the main scale and can be drawn a line through the inboard or the outside of ruling foot, satisfies more user demands. When the gauge length is less than the width of two scribing feet, the inner side can be used for scribing, and when the gauge length is close to or equal to the maximum length of the main scale, the outer side can be used for scribing, so that an excessive blank space without scales does not need to be reserved on the main scale, the material of the main scale can be saved, and the production cost is further saved.

Further, the scribing pin is a cuboid.

The scribing foot is cuboid, and both sides of the scribing foot can be used for scribing. Because the angle of rectangle is the right angle, when judging card foot locating position perpendicular to the sample that awaits measuring, except can whether perpendicular to the long limit edge of sample according to the card foot side, also can be according to the width of card foot whether be on a parallel with the long limit edge of sample. Therefore, the scribing line can be perpendicular to the sample in a double-guarantee mode, and the accuracy of size marking is further improved.

Further, the length of the main ruler is 10 cm-40 cm.

The length of main scale is too short, can lead to when needs longer gauge length marking equipment unable use, if the overlength, can inconvenient carrying, manufacturing cost also can be on the high side. Therefore, the proper length of the main ruler can meet the requirements of various gauge lengths, is convenient to carry, and saves manufacturing materials.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses a relative position setting of card foot and main scale makes and can paste tight sample when drawing the marking line, makes marking off equipment and the sample relatively fixed that awaits measuring, is difficult to skid, and can once only accomplish the operation of drawing the target gauge length marking line, avoids the human error that multistep was drawn the line and is existed, has also reduced size mark's work load, has improved size mark's accuracy and efficiency, makes the experimental data result more reliable.

(2) The utility model discloses a marking off equipment is light, and simple structure more can satisfy the portable demand of user, and the practicality is strong.

(3) The utility model discloses there are more than one card foot and main scale can relative slip, and the quantity of card foot can increase along with actual demand, can satisfy the application demand of more scenes.

(4) The utility model discloses a support piece can be done the opening design, save material, and reduction in production cost is also convenient for accomplish main scale and the separation of card foot after marking off, is convenient for accomodate.

(5) The utility model discloses the equal perpendicular to main scale in both sides of line foot can be marked off through the inboard or the outside of line foot, satisfies more user demands. When the gauge length is less than the width of two scribing feet, the inner side can be used for scribing, and when the gauge length is close to or equal to the maximum length of the main scale, the outer side can be used for scribing, so that an excessive blank space without scales does not need to be reserved on the main scale, the material of the main scale can be saved, and the production cost is further saved.

Drawings

Fig. 1 is a schematic structural view of a scribing apparatus of embodiment 1.

Fig. 2 is a schematic view of the fastener structure of embodiment 1, embodiment 2 and embodiment 3.

Fig. 3 is a schematic structural view of a scribing apparatus of embodiment 2.

Fig. 4 is a schematic structural view of a scribing apparatus of embodiment 3.

Reference numerals: main scale 1, support 21, fastener 22, scribe leg 23, through hole 211, head 221, screw 222, boss 2211.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 and 2, the present embodiment provides a portable scribing apparatus, which includes a main scale 1 and two clamping legs connected to the main scale 1, in order to make the two clamping legs tightly fit to a sample to be measured during scribing and ensure accuracy of size marking and scribing, bottom surfaces of the two clamping legs are flush, and the bottom surfaces of the clamping legs are parallel and lower than the bottom surface of the main scale 1. The two clamping feet and the main scale 1 can slide relatively, so that the multifunctional ruler is suitable for more use scenes. The clip includes a connecting structure and a scribe foot 23, the bottom surface of the connecting structure and the bottom surface of the scribe foot 23 being connected.

In order to realize the sliding of the clamping foot in use, the connecting structure comprises a support part 21 and a fastening part 22, the support part 21 is in a square annular structure, the main scale 1 penetrates through the support part 21, a through hole is formed in the top or the side of the support part 21, and the fastening part 22 penetrates through the through hole to abut against the main scale 1.

The fastening piece 22 comprises a head 221 and a screw 222, an internal thread matched with the screw 222 is arranged in the through hole, the head 221 is a cylinder, in order to facilitate loosening and screwing of the fastening piece 22, a plurality of protrusions 2211 are arranged on the side face of the head 221, the protrusions 2211 are uniformly distributed on the side face of the head 221, and the protrusions 2211 are rectangular blocks. The length of the scribing foot 23 is 5cm, the measuring range of the main scale 1 is 30cm, the division value is 1mm, and the scribing foot 23 is in a cuboid shape.

When the marking device is used, the head 221 of the fastener 22 is rotated to unscrew the fastener 22, the two clamping feet are moved to a target distance, the fastener 22 is screwed, the bottom surface of the clamping foot of the marking device is attached to a sample to be measured, the two clamping feet are attached to the main scale 1, the marking device is pressed to be fixed relative to the sample to be measured, and a pen or a knife is used for marking the size of the sample along the marking foot 23.

The relative position of this card foot and main scale sets up the messenger and can paste tight sample when drawing the marking line, makes marking device and the sample relatively fixed that awaits measuring, is difficult to skid, and can once only accomplish the operation of drawing the target gauge length marking line, avoids the human error that multistep was drawn the line and is existed, has also reduced size mark's work load, has improved size mark's accuracy and efficiency, makes the experimental data result more reliable.

Example 2

As shown in fig. 2 and 3, the present embodiment provides a portable scribing apparatus, which includes a main scale 1 and two clamping legs connected to the main scale 1, in order to make the two clamping legs tightly fit to a sample to be measured during scribing and ensure accuracy of size marking and scribing, bottom surfaces of the two clamping legs are flush, and the bottom surfaces of the clamping legs are parallel and lower than the bottom surface of the main scale 1. The two clamping feet and the main scale 1 can slide relatively, so that the multifunctional ruler is suitable for more use scenes. The clip includes a connecting structure and a scribe leg 23, and the bottom surface of the connecting structure is connected to the bottom surface of the scribe leg 23.

In order to realize the sliding of the clamping foot during use, the connecting structure comprises a supporting piece 21 and a fastening piece 22, the supporting piece 21 is a Contraband-shaped annular structure with an opening, the opening faces to one side of the supporting piece 21 far away from the scribing foot 23 or one side close to the scribing foot 23, the main scale 1 penetrates through the supporting piece 21, a through hole is formed in the top of the supporting piece 21, the fastening piece 22 penetrates through the through hole to be abutted against the main scale 1, and the fastening piece and the bottom surface of the supporting piece 21 close to the scribing foot jointly act to relatively fix the clamping foot 23 and the main scale 1.

The fastening piece 22 comprises a head 221 and a screw 222, an internal thread matched with the screw 222 is arranged in the through hole, the head 221 is a cylinder, in order to facilitate loosening and screwing of the fastening piece 22, a plurality of protrusions 2211 are arranged on the side face of the head 221, the protrusions 2211 are uniformly distributed on the side face of the head 221, and the protrusions 2211 are rectangular blocks. The length of the scribing foot 23 is 4cm, the measuring range of the main scale 1 is 30cm, the division value is 1mm, and the scribing foot 23 is in a cuboid shape.

The technical scheme saves materials, reduces the production cost, and simultaneously can realize the relative sliding of the clamping foot and the main scale 1; in addition, the main scale can be taken out from the back of the supporting piece, and is convenient to store.

Example 3

As shown in fig. 2 and 3, the present embodiment provides a portable scribing apparatus, which includes a main scale 1 and two clamping legs connected to the main scale 1, in order to make the two clamping legs tightly fit to a sample to be measured during scribing and ensure accuracy of size marking and scribing, bottom surfaces of the two clamping legs are flush, and the bottom surfaces of the clamping legs are parallel and lower than the bottom surface of the main scale 1. The two clamping feet and the main scale 1 can slide relatively, so that the multifunctional ruler is suitable for more use scenes. The clip includes a connecting structure and a scribe leg 23, and the bottom surface of the connecting structure is connected to the bottom surface of the scribe leg 23.

In order to realize the sliding of the clamping foot in use, the connecting structure comprises a supporting part 21 and a fastening part 22, the supporting part 21 is a Contraband-shaped annular structure with an opening, the opening faces to the top surface of the supporting part 21, and thus the scale marks on the main scale 1 are not shielded by the supporting part 21. The main scale 1 penetrates through the supporting piece 21, a through hole is formed in the side portion, far away from the scribing pin 23, of the supporting piece 21 or the side portion, close to the scribing pin 23, of the supporting piece 21, the fastening piece 22 penetrates through the through hole to be abutted to the main scale 1, and the fastening piece and one surface, close to the scribing pin, of the supporting piece 21 jointly act to fix the clamping pin 23 and the main scale 1 relatively.

The fastening piece 22 comprises a head 221 and a screw 222, an internal thread matched with the screw 222 is arranged in the through hole, the head 221 is a cylinder, in order to facilitate loosening and screwing of the fastening piece 22, a plurality of protrusions 2211 are arranged on the side face of the head 221, the protrusions 2211 are uniformly distributed on the side face of the head 221, and the protrusions 2211 are rectangular blocks. The length of the scribing foot 23 is 4cm, the measuring range of the main scale 1 is 25cm, the division value is 1mm, and the scribing foot 23 is in a cuboid shape.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A portable line marking device is characterized by comprising a main scale and at least two clamping feet connected with the main scale, wherein the clamping feet comprise a connecting structure and a marking foot which are connected, the connecting structure is connected with the main scale, the at least two marking feet are arranged on one side of the main scale, the bottom surfaces of all the clamping feet are flush, the bottom surfaces of the clamping feet are parallel and lower than the bottom surface of the main scale, and at least one clamping foot can slide relative to the main scale.

2. A portable line striping apparatus according to claim 1 wherein the attachment structure comprises a support member and a fastener, the support member being of a square annular configuration, the main scale passing through the support member; the top or the side of the support piece is provided with a through hole, and the fastener penetrates through the through hole to be abutted against the main ruler.

3. The portable streaking apparatus as in claim 1 wherein the attachment formation includes a support and a fastener, the support being a Contraband-shaped loop formation having an opening through which the main scale passes;

the opening faces the side face of the support piece, the top of the support piece is provided with a through hole, or the opening faces the top face of the support piece, and the side part of the support piece is provided with a through hole;

the fastener passes through the through hole and abuts against the main ruler.

4. A portable line striping apparatus according to claim 3 wherein the fastener comprises an attached head and a threaded shaft, the through bore being provided with an internal thread which mates with the threaded shaft.

5. A portable line striping apparatus according to claim 4 wherein the head is cylindrical and the sides are provided with projections.

6. A portable line striping apparatus according to claim 5 wherein the protrusions are evenly distributed on the sides of the head and are rectangular in cross-section.

7. The portable scribing device according to claim 2, wherein the scribing foot has a length of 3cm to 7cm.

8. A portable line striping apparatus according to claim 2 wherein both sides of the scribe foot are perpendicular to the main scale.

9. A portable line striping apparatus according to claim 2 wherein the scribe foot is a cuboid.

10. A portable line marking apparatus according to claim 1 wherein the length of the main scale is from 10cm to 40cm.

Images